The downstream shock wave pressure refers to the pressure of a fluid after it has passed through a shock wave. A shock wave is a rapid and abrupt change in the pressure, temperature, and density of a fluid that occurs when it travels at a speed greater than the local speed of sound. When a fluid encounters a shock wave, its properties experience significant changes, and these changes propagate through the fluid. In the context of a shock wave, the downstream pressure () is the pressure of the fluid after it has passed through the shock wave and is on the side opposite to the direction of the incoming flow.
- p3/p2 is the pressure ratio for reflected shockÂ
- p2/p1 is the pressure ratio for incident shockÂ
- p1 is the standard sea level pressure Â